Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu How to Use This Presentation To View the presentation as a slideshow with effects select “View” on the menu bar and click on “Slide Show.” To advance through the presentation, click the right-arrow key or the space bar. From the resources slide, click on any resource to see a presentation for that resource. From the Chapter menu screen click on any lesson to go directly to that lesson’s presentation. You may exit the slide show at any time by pressing the Esc key.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter Presentation Transparencies Image and Math Focus Bank Bellringers Standardized Test Prep Visual Concepts Resources
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Light and Our World Table of Contents Section 1 Mirrors and Lenses Section 2 Light and Sight Section 3 Light and Technology Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Bellringer What is the difference between a mirror and a lens? What is the difference between a convex mirror and a concave mirror? Can you think of one common use for a convex lens and for a concave lens? Record your responses in your science journal. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Objectives Use ray diagrams to show how light is reflected or refracted. Compare plane mirrors, concave mirrors, and convex mirrors. Use ray diagrams to show how mirrors form images. Describe the images formed by concave and convex Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Rays and the Path of Light Waves A Ray of Light Because light waves travel in straight lines, you can use an arrow called a ray to show the path and the direction of a light wave. Rays and Reflected and Refracted Light Rays help to show the path of a light wave after it bounces or bends. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Mirrors and Reflection of Light Plane Mirrors A plane mirror is a mirror that has a flat surface. The reflection of an object in a plane mirror is right side up and the same size as the object, but reversed left to right. Plane mirrors form virtual images. A virtual image is an image through which light does not travel Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Mirrors and Reflection of Light, continued Concave Mirrors A concave mirror is a mirror that is curved inward. The image formed by a concave mirror depends on the optical axis, focal point, and focal length of the mirror. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Chapter 23 The Optical Axis, Focal Point, and Focal Length
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Mirrors and Reflection of Light, continued Concave Mirrors and Ray Diagrams Draw a ray diagram to determine if a concave mirror will form a virtual image like a plane mirror, or a real image. A real image is an image through which light passes. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Section 1 Mirrors and Lenses How Images Are Formed in Concave Mirrors
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Mirrors and Reflection of Light, continued Convex Mirrors A convex mirror is a mirror that curves outward. The image formed by a convex mirror is always virtual, right side up, and smaller than the original object. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Section 1 Mirrors and Lenses Convex Mirror Ray Diagram
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Lenses and Refraction of Light A lens is a transparent object that forms an image by refracting, or bending, light. Two kinds of lenses are convex and concave. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Chapter 23 How Light Passes Through Concave and Convex Lenses
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Lenses and Refraction of Light, continued Convex Lenses A convex lens is thicker in the middle than at the edges. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Lenses and Refraction of Light, continued Concave Lenses A concave lens is thinner in the middle than at the edges. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Light and Sight Bellringer Answer the following questions in your science journal. What do you think a person who has colorblindness sees? If you have colorblindness, describe what you see. What difficulties would a person who has colorblindness have? Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Light and Sight Objectives Identify the parts of the human eye, and describe their functions. Describe three common vision problems. Describe surgical eye correction. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Light and Sight How You Detect Light Your eye gathers visible light to form the images that you see. The thickness of the lens of the eye changes so that objects at different distances can be seen in focus. The light that forms a real image on the retina is detected by receptors called rods and cones. The next slide explains how your eyes work. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Light and Sight Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Light and Sight Common Vision Problems Nearsightedness happens when a person’s eye is too long. A nearsighted person can see something clearly only if it is nearby. Faraway objects look blurry. Farsightedness happens when a person’s eye is too short. A farsighted person can see faraway objects clearly. But things that are nearby look blurry. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Light and Sight Common Vision Problems, continued The images below explain how nearsightedness and farsightedness can be corrected with glasses. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Light and Sight Common Vision Problems, continued Color Deficiency is another name for colorblindness. The majority of people who have color deficiency can’t tell the difference between shades of red and green or can’t tell red from green. Color deficiency happens when the cones in the retina do not work properly. Color deficiency cannot be corrected. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Light and Sight Surgical Eye Correction Surgical eye correction works by reshaping the patient’s cornea by using a laser. Patients often gain perfect or nearly perfect vision after surgery. Risks of Surgical Eye Correction Some patients report glares, double vision, or trouble seeing at night. People under 20 years old should not have surgical eye correction because their vision is still changing. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Bellringer Can you describe what a laser is? List at least four uses for lasers. Explain your answers in your science journal. Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Objectives Describe three optical instruments. Explain what laser light is, and identify uses for lasers. Describe how optical fibers work. Explain polarized light. Explain how radio waves and microwaves are used in four types of communication technology. Chapter 23 Section 3 Light and Technology
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Optical instruments are devices that use mirrors and lenses to help people make observations. Cameras A camera is used to record images. All cameras have a lens, shutter, and an aperture. A 35 mm camera records images on film. A digital camera uses light sensors to record images and to send electric signals to a computer. Chapter 23 Section 3 Light and Technology Optical Instruments
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Optical Instruments, continued Telescopes Telescopes are used to see detailed images of large, distant objects. Refracting telescopes use lenses to collect light. Reflecting telescopes use mirrors to collect light. Chapter 23 Section 3 Light and Technology
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23 How Refracting and Reflecting Telescopes Work
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Optical Instruments, continued Light Microscopes Microscopes are used to study tiny, nearby objects. Microscopes have two convex lenses. An objective lens is close to the object being studied. An eyepiece lens is in the lens you look through. Chapter 23 Section 3 Light and Technology
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Lasers and Laser Light A laser is a device that produces intense light of only one wavelength and color. How Lasers Produce Light The word laser stands for light amplification by stimulated emission of radiation. Amplification is the increase in the brightness of the light. Radiation is energy transferred as electromagnetic waves. Chapter 23 Section 3 Light and Technology
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23 Laser Light is Differs from Nonlaser Light
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Lasers and Laser Light, continued Uses for Lasers Lasers are used to make holograms. A hologram is a piece of film that produces a three-dimensional image of an object. Lasers have many other applications. They are used to cut materials such as metal and cloth. Doctors sometimes use lasers for surgery. CD players use lasers to read CDs. Chapter 23 Section 3 Light and Technology
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Optical Fibers An optical fiber is a thin, glass wire that transmits light over long distances. Optical fibers are used to transmit information through telephone cables and network computers. Doctors use optical fibers to see inside patients’ bodies. Chapter 23 Section 3 Light and Technology
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Optical Fibers, continued Light in a Pipe Optical fibers are like pipes that carry light. Light stays inside an optical fiber because of total internal reflection, the complete reflection of light light along the surface of the material. Chapter 23 Section 3 Light and Technology
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Polarized Light Polarized light consists of light waves that vibrate in only one plane. Some sunglasses and camera lenses use polarized filters to reduce glare. Chapter 23 Section 3 Light and Technology
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23 Polarizing Filters Reduce Glare
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Communication Technology Light waves, radio waves, and microwaves are all types of electromagnetic waves. Cordless telephones and cellular telephones use radio waves and microwaves to send signals. Cordless Telephones The base of a cordless telephone changes the signal it receives into radio waves. The handset changes the radio waves into sound. Chapter 23 Section 3 Light and Technology
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Communication Technology, continued Cellular Telephones Cellular telephones send and receives signals from distant towers. Instead of using radio waves like cordless phones, cellular phones use microwaves to send information. Chapter 23 Section 3 Light and Technology
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Communication technology, continued Satellite Technology Microwave signals are broadcast from space to satellite dishes on Earth. Satellites allow more people to receive the signals and to receive higher quality signals than if antennas on Earth were used. The Global Positioning System The GPS is a network of 27 satellites that orbit Earth. A GPS receiver receives signals from at least four satellites to find its exact location. Chapter 23 Section 3 Light and Technology
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Use the terms below to complete the concept map on the next slide. Concept Map real convex light lenses virtual mirrors Light and Our World Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Light and Our World Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Light and Our World Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu End of Chapter 23 Show
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Reading Read each of the passages. Then, answer the questions that follow each passage. Chapter 23 Standardized Test Preparation
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation Continued on the next slide Passage 1 One day in the 1920s, an automobile collided with a horse and carriage. Garrett Morgan witnessed this, and the accident gave him an idea. Morgan designed a signal that included signs to direct traffic at busy intersections. The signal could be seen from a distance and could be clearly understood. Morgan patented the first traffic signal in Unlike the small, three-bulb signal boxes used today, the early versions were T shaped and had the words stop and go printed on them.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation Passage 1, continued Morgan’s invention was an immediate success. Morgan sold the patent to General Electric Corporation for $40,000—a large sum in those days. Since then, later versions of Morgan’s traffic signal have been a mainstay of traffic control.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 1. In the passage, what does the word versions refer to? A automobiles B accidents C light bulbs D traffic signals
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 1. In the passage, what does the word versions refer to? A automobiles B accidents C light bulbs D traffic signals
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 2. Which of the following statements is a fact? F Morgan still makes money selling traffic signals today. G Traffic signals were confusing and caused a lot of accidents. H Morgan came up with the idea of a traffic signal after seeing a traffic accident. I Morgan patented the traffic signal in 1920.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 2. Which of the following statements is a fact? F Morgan still makes money selling traffic signals today. G Traffic signals were confusing and caused a lot of accidents. H Morgan came up with the idea of a traffic signal after seeing a traffic accident. I Morgan patented the traffic signal in 1920.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 3. How were the first traffic signals similar to the signals used today? A They were T shaped. B They contained three light bulbs. C The words stop and go were printed on them. D They directed traffic at busy intersections.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 3. How were the first traffic signals similar to the signals used today? A They were T shaped. B They contained three light bulbs. C The words stop and go were printed on them. D They directed traffic at busy intersections.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation Passage 2 Twenty years ago, stars were very visible, even above large cities. Now, the stars above large cities are obscured by the glow from city lights. This glow, called sky glow, is created when light reflects off dust and particles in the atmosphere. Sky glow is also called light pollution. Continued on next slide
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation Passage 2, continued The majority of light pollution comes from outdoor lights,such as headlights, street lights, porch lights, and parking-lot lights. Unlike other kinds of pollution, light pollution can easily be reduced. For example, using covered outdoor lights keeps the light angled downward, which prevents most of the light from reaching particles in the sky. Also, using motion-sensitive lights and timed lights helps eliminate unnecessary light.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 1. Which of the following best describes the reason the author wrote the passage? A to explain light pollution and to explain how to reduce it B to convince people to look at stars C to explain why people should not live in cities D to describe the beauty of sky glow
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 1. Which of the following best describes the reason the author wrote the passage? A to explain light pollution and to explain how to reduce it B to convince people to look at stars C to explain why people should not live in cities D to describe the beauty of sky glow
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 2. Which of the following contributes the least amount to light pollution? F headlights on cars G lights inside homes H lights used in outdoor stadiums I lights in large parking lots
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 2. Which of the following contributes the least amount to light pollution? F headlights on cars G lights inside homes H lights used in outdoor stadiums I lights in large parking lots
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 3. In the passage, what does the word obscured mean? A made brighter B reflected C polluted D made difficult to see
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 3. In the passage, what does the word obscured mean? A made brighter B reflected C polluted D made difficult to see
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation Interpreting Graphics The table below shows details about four lasers sold by a laser company. Use the table below to answer the questions that follow.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 1. What is the mass of the laser that has the most power? A 0.6 kg B 0.9 kg C 2.8 kg D 5.8 kg
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 1. What is the mass of the laser that has the most power? A 0.6 kg B 0.9 kg C 2.8 kg D 5.8 kg
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 2. The company also sells a laser that has a wavelength of 633 nm and a power of 5 mW. Which of the following statements best predicts the mass of this laser? F The laser has a mass of less than 0.6 kg. G The laser has a mass between 0.6 kg and 0.9 kg. H The laser has a mass greater than 0.9 kg. I The laser has a mass of 5.8 kg.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 2. The company also sells a laser that has a wavelength of 633 nm and a power of 5 mW. Which of the following statements best predicts the mass of this laser? F The laser has a mass of less than 0.6 kg. G The laser has a mass between 0.6 kg and 0.9 kg. H The laser has a mass greater than 0.9 kg. I The laser has a mass of 5.8 kg.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 3. Based on the information in the table, which statement is most likely true? A The power of the laser determines the color of light. B The wavelength of the laser determines the color of light. C The mass of the laser determines the color of light. D There is not enough information to determine the answer.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 3. Based on the information in the table, which statement is most likely true? A The power of the laser determines the color of light. B The wavelength of the laser determines the color of light. C The mass of the laser determines the color of light. D There is not enough information to determine the answer.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation Math Read each question below, and choose the best answer.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 1. Micah has a box that has a length of 16 cm, a width of 10 cm, and a height of 5 cm. What is the volume of the box? A 1,600 cm3 B 800 cm3 C 700 cm3 D 500 cm3
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 1. Micah has a box that has a length of 16 cm, a width of 10 cm, and a height of 5 cm. What is the volume of the box? A 1,600 cm3 B 800 cm3 C 700 cm3 D 500 cm3
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 2. Which list shows the temperatures from lowest to highest? F –3°C, 28°C, 212°C, 7°C, 11°C G –3°C, 7°C, –8°C, 11°C, –12°C H –12°C, 11°C, 7°C, –8°C, –3°C I –12°C, –8°C, –3°C, 7°C, 11°C
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 2. Which list shows the temperatures from lowest to highest? F –3°C, 28°C, 212°C, 7°C, 11°C G –3°C, 7°C, –8°C, 11°C, –12°C H –12°C, 11°C, 7°C, –8°C, –3°C I –12°C, –8°C, –3°C, 7°C, 11°C
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 3. The power of a microscope lens is the amount of magnification the lens gives. For example, a 10x lens magnifies objects 10 times. How many times is an object magnified if it is viewed with both a 5x lens and a 30x lens? A 35 times B 60 times C 150 times D 350 times
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation 3. The power of a microscope lens is the amount of magnification the lens gives. For example, a 10x lens magnifies objects 10 times. How many times is an object magnified if it is viewed with both a 5x lens and a 30x lens? A 35 times B 60 times C 150 times D 350 times
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Chapter 23 The Optical Axis, Focal Point, and Focal Length
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Section 1 Mirrors and Lenses How Images Are Formed in Concave Mirrors
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Section 1 Mirrors and Lenses Convex Mirror Ray Diagram
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Chapter 23 How Light Passes Through Concave and Convex Lenses
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 1 Mirrors and Lenses Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Light and Sight Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 Light and Sight Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23 How Refracting and Reflecting Telescopes Work
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23 Laser Light is Differs from Nonlaser Light
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23 Polarizing Filters Reduce Glare
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 3 Light and Technology Chapter 23
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 23 Standardized Test Preparation